Telegraphy – Systems – Position coordinate determination for writing
Patent
1995-08-02
1998-04-07
Kuntz, Curtis
Telegraphy
Systems
Position coordinate determination for writing
178 18, 178 19, G08C 2100
Patent
active
057366888
ABSTRACT:
A contact input system with conductive segments made of a conductive ink and formed to follow a selected pattern that are located on a rectangular resistive surface. The conductive segments to the left of a T-shaped segment at the midpoint of each side are generally Z-shaped and those to the right of the midpoint are shaped like an inverted Z. The segments are disposed in a generally parabolic shape curving towards the center of the active surface area. The top bar of each segment overlaps at least a portion of the bottom bar of the adjacent conductive segment. The system thus has only two overlapping lines of conductive segments. The segments linearize electric fields in the resistive surface in order to provide greater accuracy in determining the location of a contact point on the surface.
REFERENCES:
patent: 3591718 (1971-07-01), Asano
patent: 3632874 (1972-01-01), Malavard
patent: 3798370 (1974-03-01), Hurst
patent: 4071689 (1978-01-01), Talmage et al.
patent: 4178481 (1979-12-01), Kley
patent: 4198539 (1980-04-01), Pepper, Jr.
patent: 4293734 (1981-10-01), Pepper
patent: 4493104 (1985-01-01), Lukis et al.
patent: 4622437 (1986-11-01), Bloom et al.
patent: 4649232 (1987-03-01), Nakamura
patent: 4661655 (1987-04-01), Gibson
patent: 4725695 (1988-02-01), Murdock et al.
patent: 4731508 (1988-03-01), Gibson et al.
patent: 4777328 (1988-10-01), Talmage, Jr. et al.
patent: 4797514 (1989-01-01), Talmage
patent: 4822957 (1989-04-01), Talmage, Jr. et al.
patent: 5041701 (1991-08-01), Wolfe et al.
patent: 5045644 (1991-09-01), Dunthorn
Barrett Gary L.
Wolfe Andrew L.
Kuntz Curtis
Shankar Vijay
The Graphics Technology Company, Inc.
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